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BlackZzzverrR [31]
2 years ago
13

For the function -2x²+x+1 find f(3)

Mathematics
2 answers:
jenyasd209 [6]2 years ago
6 0

Answer:

f(3) = -14

Step-by-step explanation:

f(x)=-2x^{2} +x+1\\f(3)=-2(3)^2+3+1\\f(3) = -2(9)+4\\f(3) = -18+4\\f(3) = -14

nexus9112 [7]2 years ago
3 0

Answer:

-14

Step-by-step explanation:

Plug 3 in for x

-2 (3)² + 3 + 1

-2 (9) + 3 + 1

-18 + 3 + 1

-14

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What is 6 and 2/5 + 7 and 9/10? simplify answer
netineya [11]

Answer:

Step-by-step explanation:

What I would do is convert everything to have a denominator of 10 so it could be easier to add.

6 would equal 60/10

7 would equal 70/10

2/5 would equal 4/10

now add all together

60/10 + 70/10 + 4/10 +9/10 and you get 143/10. If you wanted to simplify you would get 14 3/10 or 14.30

5 0
2 years ago
H(x) = –x2 + 1; Find h(–6)
babunello [35]

Answer:

h(-6)= -(-6)2+1= 12+1= 13.

5 0
3 years ago
In ΔEFG, the measure of ∠G=90°, the measure of ∠E=6°, and GE = 71 feet. Find the length of EF to the nearest tenth of a foot.
djyliett [7]

Answer:68.2

Step-by-step explanation:

cos6=71/EF

cos6= 0.960170286650366

0.960170286650366= 71/EF

0.960170286650366*71=EF

EF= 68.2

3 0
3 years ago
Read 2 more answers
How do you solve for 5/6w = 2/3 (the answer is w= 4/5) I just don’t know how to show it.
Readme [11.4K]

Answer:

5/6w=2/3

5/6(4/5)=2/3

20/30=2/3

20/30=10/15=2/3=2/3

Proof:

5/6w=2/3

6/5*5/6w=2/3*6/5

30/30w=2/3*6/5

w=12/15=4/5

Hope this helps ;) ❤❤❤

6 0
3 years ago
PLEASE HELP <br> I WILL MARK BRAINLIEST
Sav [38]

Answer:

False

Step-by-step explanation:

They don't look alike

5 0
3 years ago
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